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Finding the Fourth Proportional to 615,094.20, 922,641.30 and 565,327.80

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Solution

The fourth proportional to 615,094.20, 922,641.30 and 565,327.80 is: 847,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,094.20 : 922,641.30 = 565,327.80 : x
  2. Step 2: Convert to fraction form
    615,094.20/922,641.30 = 565,327.80/x
  3. Step 3: Cross multiply
    615,094.20x = 922,641.30 × 565,327.80
  4. Step 4: Simplify right side
    615,094.20x = 521,594,776,318.14
  5. Step 5: Solve for x
    x = 521,594,776,318.14/615,094.20
  6. Step 6: Final answer
    x = 847,991.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.